A defrosting performance identical to that in a conventional front defroster nozzle device is exhibited by a simpler structure even in the case of decreasing the overall length of a front defroster nozzle device in the direction of vehicle width. A current of air from a front blow-opening formed on the same side as a windshield is mainly sent to the left and right end portions of the windshield and a current of air from a rear blow-opening adjacent to the front blow-opening and formed further inside the vehicle interior than the front blow-opening is mainly sent to the central portion of the windshield. Accordingly, currents of air are inhibited from interfering with each other.